Mounds Candy Bar Brownies sound absolutely decadent! Here’s a detailed recipe for you:

**Ingredients:**

**For the Brownies:**
– 1 cup (2 sticks) unsalted butter, melted
– 2 cups granulated sugar
– 4 large eggs
– 1 teaspoon vanilla extract
– 1 cup all-purpose flour
– 1/2 cup unsweetened cocoa powder
– 1/4 teaspoon salt

**For the Coconut Filling:**
– 2 cups shredded sweetened coconut
– 1 can (14 ounces) sweetened condensed milk

**For the Chocolate Topping:**
– 1 1/2 cups semisweet chocolate chips
– 1/2 cup heavy cream

**Instructions:**

**1. Preheat the Oven:**
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan and line it with parchment paper, leaving an overhang for easy removal.

**2. Make the Brownie Batter:**
– In a large bowl, whisk together the melted butter and sugar.
– Add the eggs one at a time, beating well after each addition.
– Stir in the vanilla extract.
– In a separate bowl, sift together the flour, cocoa powder, and salt.
– Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

**3. Bake the Brownies:**
– Pour the brownie batter into the prepared pan and spread it evenly.
– Bake for 25-30 minutes or until a toothpick inserted into the center comes out with a few moist crumbs.
– Allow the brownies to cool completely in the pan.

**4. Make the Coconut Filling:**
– In a bowl, combine the shredded coconut and sweetened condensed milk. Mix until well combined.

**5. Assemble the Brownies:**
– Once the brownies are completely cool, spread the coconut filling evenly over the top.

**6. Make the Chocolate Topping:**
– In a heatproof bowl, combine the chocolate chips and heavy cream.
– Microwave in 30-second intervals, stirring after each, until the chocolate is fully melted and smooth.

**7. Finish the Brownies:**
– Pour the chocolate topping over the coconut layer, spreading it evenly.
– Allow the chocolate to set slightly.

**8. Chill and Serve:**
– Refrigerate the brownies for at least 1-2 hours to allow everything to set.
– Once chilled, use the parchment paper overhang to lift the brownies out of the pan.
– Cut into squares and indulge in your Mounds Candy Bar Brownies!

These rich and gooey brownies are sure to be a hit. Enjoy! If you have any questions or need further assistance, feel free to ask.